Xen PV Networking issue - disable PV NIC in XENHVM FreeBSD?

[Karl Pielorz]

--On 11 February 2014 18:20 +0100 Roger Pau Monné <roger.pau at citrix.com> 
wrote:

> You could try to disable the following:
>
> ifconfig xnX -rxcsum -txcsum -tso4 -lro

As a follow-up to this, using:

  ifconfig xnX -rxcsum -txcsum

Does actually fix the problem. I finally got a block of time to go through 
all this stuff again the other day [it's amazing what difference actually 
having a decent chunk of uninterrupted time makes!]

You do need to be careful when setting this - as at one point, it seemed to 
cause some kind of issue that may have flooded the network (if it did - 
this would be the second time we've seen a XenServer DomU flood things by 
jabbering the same packet over, and over).

-Karl